Browse source-reviewed property tax appeal guides for Arizona. County deadlines, filing methods, and available records can differ by county and tax year.
Each published guide identifies the public sources used for its deadline and filing summary. Confirm current requirements with the official filing authority before submitting anything.
Maricopa County: 2027 deadline guidance is 2027 Notice of Valuation appeal closed: April 21, 2026. Guide: https://fairpath.app/property-tax-appeal/arizona/maricopa-county
Source: Arizona Department of Revenue, Petition for Review of Real Property Valuation, https://azdor.gov/forms/property-tax-forms/petition-review-real-property-valuation. Reviewed 2026-07-29.
Source: Arizona Department of Revenue, Property Tax FAQs, https://azdor.gov/business/property-tax/property-tax-faqs. Reviewed 2026-07-29.
Source: Maricopa County Assessor, Notice of Claim, https://api.mcassessor.maricopa.gov/page/appeals/notice_of_claim. Reviewed 2026-07-29.
Source: Maricopa County Assessor, Property Valuation Appeals, https://www.mcassessor.maricopa.gov/page/appeals/. Reviewed 2026-07-29.
Source: Maricopa County Assessor, Residential Property 2026 Tax-Year Calendar, https://www.mcassessor.maricopa.gov/page/residential_property/. Reviewed 2026-07-29.